Calculate the molality of a solution containing 100.7 g of glycine (NH2CH2COOH) dissolved in 3.466 kg of H2O.

The molality of the solution is 0.387 molal

Explanation:

Step 1: Data given

Mass of glycine = 100.7 grams

Mass of H2O = 3.466 kg

Molar mass of glycine = 75.07 g/mol

Step 2: Calculate moles glycine

Moles glycine = mass glycine / molar mass glycine

Moles glycine = 100.7 grams / 75.07 g/mol

Moles glycine = 1.341 moles

Step 3: Calculate molality of the solution

Molality = moles glycine / mass H2O

Molality = 1.341 moles / 3.466 kg

Molality = 0.387 molal

The molality of the solution is 0.387 molal

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